diff mbox series

[Ada] Fix proof of runtime unit s-imageu

Message ID 20220518084331.GA3391399@adacore.com
State Committed
Commit 9f068ad0f2f1d65349ac564178cddbe9aec39f3a
Headers
Series [Ada] Fix proof of runtime unit s-imageu |

Commit Message

Pierre-Marie de Rodat May 18, 2022, 8:43 a.m. UTC 
  Update to provers caused some proof regressions.  Fix the proof by
adding an assertion.

Tested on x86_64-pc-linux-gnu, committed on trunk

gcc/ada/

	* libgnat/s-imageu.adb (Set_Image_Unsigned): Change assertion.
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Patch

diff --git a/gcc/ada/libgnat/s-imageu.adb b/gcc/ada/libgnat/s-imageu.adb
--- a/gcc/ada/libgnat/s-imageu.adb
+++ b/gcc/ada/libgnat/s-imageu.adb
@@ -390,16 +390,9 @@  package body System.Image_U is
                Acc  => Value)
               = Wrap_Option (V));
       end loop;
+      pragma Assert (Value = 0);
 
       Prove_Unchanged;
-      pragma Assert
-        (Scan_Based_Number_Ghost
-           (Str  => S,
-            From => P + 1,
-            To   => P + Nb_Digits,
-            Base => 10,
-            Acc  => Value)
-         = Wrap_Option (V));
 
       P := P + Nb_Digits;
    end Set_Image_Unsigned;